MCQ
A tuning fork of frequency 480Hz is used to vibrate a sonometer wire having natural frequency 240Hz. The wire will vibrate with a frequency of:
- A240Hz
- ✓480Hz
- C720Hz
- DWill not vibrate.
✓
Answer
Correct option: B.
480Hz
The frequency of vibration of a sonometer wire is the same as that of a fork. If this happens to be natural frequency of the wire, then standing waves with large amplitude are set up in it.
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